Wonderful, glad to see you as a subscriber!
Another user just reported a blank page on the overview. If you could try to do the same thing we asked of them, that would be great to help us diagnose the cause of the problem. A blank white screen is almost always the sign of a PHP Fatal Error. If you install again, can you go Site->Global Configuration and on the Server Tab change Error Reporting to "Maximum". Then hit the offending page and report any error output here. When done, turn error reporting off.
As for installation, you are only required to install the com_jfbconnect_xxxx file. That will install the JFBCLogin Module and the 2 plugins. I actually just disable the plugins from view as those shouldn't need to be downloaded and installed separately, which I can see being confusing. Everything else are optional modules to enhance your site.
Not sure if you've gone through it, but the configuration guide for JFBConnect should help you. However, with the white overview screen page, I think there's obviously a bigger problem that needs to be resolved before you'll truly be able to configure, and use, JFBConnect:
www.sourcecoast.com/extensions/jfbconnect/configuration-guide